Sea to Summit Reactor Thermolite Extreme Sleeping Bag Liner


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A temperature drop below zero doesn't have to be an uncomfortable experience.

The Reactor Thermolite Extreme will provide a comfortable night's sleep, even when the mercury plummets. Your sleeping bag's performance can be potentially increased by a whopping 15°C thanks to the liners super insulating 110g/m2 Thermolite fabric. An insulating liner is a cost-effective way to increase your bag's performance over winter, without the need to upgrade your sleeping system.

  • The spacious design allows room to move for a more comfortable sleep.
  • The liner is constructed in a mummy shape with foot box for maximum warmth.
  • A draw cord hood includes a mini cord lock.
  • The liner stuffs into it's own Ultra-Sil stuff sack.
  • Weight - 399g
  • Dimensions - 210cm x 90cm